The present invention involves a system for irradiating articles with ultraviolet radiation that are transported through an irradiation tunnel along a longitudinal article treatment path from a tunnel entrance to a tunnel exit employing a conveyor system. Ultraviolet irradiation sources are located
The present invention involves a system for irradiating articles with ultraviolet radiation that are transported through an irradiation tunnel along a longitudinal article treatment path from a tunnel entrance to a tunnel exit employing a conveyor system. Ultraviolet irradiation sources are located within the tunnel, both above and below the article treatment path. The conveyor system includes at least two different sequential segments that contact different laterally separated locations on the articles to be treated from beneath. The points of contact between the different segments of the conveyor system are offset in a lateral or transverse direction so that all locations on the articles are left unobscured from beneath at some location on the treatment path. As a consequence, all downwardly facing surfaces of the articles carried on the conveyor system are exposed to radiation from beneath. The ultraviolet irradiation sources may be configured as elongated, transverse tubes, at least some of which are located within elliptical reflectors so that some of the ultraviolet radiation is reflected onto the passing articles at angles that vary as the articles progress along the treatment path. The ends of the ultraviolet tubes are mounted within unique end supports that allow the tubes to be rotated one hundred eighty degrees by a single person manipulating just one end of each lamp tube.
대표청구항▼
The present invention involves a system for irradiating articles with ultraviolet radiation that are transported through an irradiation tunnel along a longitudinal article treatment path from a tunnel entrance to a tunnel exit employing a conveyor system. Ultraviolet irradiation sources are located
The present invention involves a system for irradiating articles with ultraviolet radiation that are transported through an irradiation tunnel along a longitudinal article treatment path from a tunnel entrance to a tunnel exit employing a conveyor system. Ultraviolet irradiation sources are located within the tunnel, both above and below the article treatment path. The conveyor system includes at least two different sequential segments that contact different laterally separated locations on the articles to be treated from beneath. The points of contact between the different segments of the conveyor system are offset in a lateral or transverse direction so that all locations on the articles are left unobscured from beneath at some location on the treatment path. As a consequence, all downwardly facing surfaces of the articles carried on the conveyor system are exposed to radiation from beneath. The ultraviolet irradiation sources may be configured as elongated, transverse tubes, at least some of which are located within elliptical reflectors so that some of the ultraviolet radiation is reflected onto the passing articles at angles that vary as the articles progress along the treatment path. The ends of the ultraviolet tubes are mounted within unique end supports that allow the tubes to be rotated one hundred eighty degrees by a single person manipulating just one end of each lamp tube. rter. 7. The device of claim 1, wherein the fluorescent region comprises erbium. 8. The device of claim 7, wherein the fluorescent region is illuminated by a light signal from the first light transporter having a wavelength of 900 nm. 9. The device of claim 1, wherein the shell defines an evacuated cavity enclosing the beam and the fluorescent region. 10. The device of claim 1, wherein the beam is excited to resonance based upon a photodiode. 11. The device of claim 1, wherein the substrate supports the shell and the beam. 12. The device of claim 1, wherein the shell, the beam and the substrate are micromachined. 13. The device of claim 1, wherein the device is used to sense pressure within an organism. 14. The device of claim 1, wherein the first and second light transporters are optical fibers. 15. The device of claim 1, wherein the first and second light transporters are optical waveguides. 16. A method for sensing pressure using a vacuum cavity device having at least one fluorescent region and a pressure sensitive resonant beam, the method comprising: directing a first light wave toward the pressure sensitive resonant beam and the fluorescent region; exciting the pressure sensitive resonant beam to a resonant frequency in response to the first light wave; and transmitting away from the pressure sensitive resonant beam a second light wave generated by the fluorescent region in response to the first light wave, the first and second light waves having different wavelengths, the second light wave having a property corresponding to the resonant frequency of the pressure sensitive resonant beam. 17. The method of claim 16, further comprising evaluating the second light wave in a sensor circuit. 18. The method of claim 16, wherein the exciting of the pressure sensitive resonant beam comprises directing the first light wave to a photodiode mounted proximate to the pressure sensitive resonant beam. 19. The method of claim 16, wherein the fluorescent region comprises erbium. 20. The method of claim 16, wherein the first light wave has a wavelength of 900 nm. 21. The method of claim 16, wherein the shell, the pressure sensitive resonant beam and the substrate are micromachined. 22. The method of claim 21, further comprising measuring pressure in a region of the human body as a function of the second light wave. 23. An optically powered integrated microstructure remote pressure sensor comprising: a substrate supporting a polysilicon shell having an outer surface and an inner surface, the inner surface defining an evacuated cavity enclosing an area of the substrate, the substrate being provided with a fluorescent region; a microbeam affixed to the inner surface of the shell within the evacuated cavity by two spaced apart posts, the microbeam disposed in the vicinity of the substrate; a photodiode integrated into the substrate at a surface location beneath the microbeam; a first light transporter having a distal end and a proximate end, the proximate end of the first optical fiber being disposed adjacent the outer surface of the shell to direct light from the first optical fiber to the photodiode and to the fluorescent region; and a second light transporter having a distal end and a proximate end, the proximate end of the second light transporter being disposed at the outer surface of the shell so as to transmit light emitted by the fluorescent region, wherein the transmitted light indicates a frequency of vibration of the beam. 24. The sensor of claim 23, further comprising sensor electronics receiving, through the distal end of the second light transporter, the light wave generated by the fluorescent region. 25. The sensor of claim 23, wherein the light received by fluorescent region from the first light transporter has a wavelength of 900 nm. 26. The sensor of claim 23, wherein the microbeam is excited to resonance by the photodiode. 27. The sensor of claim 23, wherein excitation of the microbeam comprises directing t
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이 특허에 인용된 특허 (1)
Castberg Helge Bakketun,NOX ; Bergmann Karin,GBX ; Hyde Peter John,GBX ; Ness Karen Margaret Montgomery,GBX ; Stanley Christopher John,GBX, Treatment of material.
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